chambees



(JN0 Model.) Y l A A A. M. CHAMBERS.

G ok-e- Oven.

l No. 236,933.

Patented 1an. 25,1881.

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UNITED STATES PATENT OFFICE.

ARTHUR M. CHAMBERS, OF SHEEFIELD, COUNTY OF YORK, ENGLAND.

COKE-OVEN.

SPECIFICATION forming part of Letters Patent No. 236,933, dated January 25, 1881.

l Application filed April 19, 1880. (No model.) PatentednEngland December 15` 1879.

To all whom it may concern Be it known that I, ARTHUR MARSHALL CHAMBERS, of Sheflield, in the countyot' York, England, have invented a newand useful Improvement in Coke-Ovens, (which was patented to me in England, December 15,'1879, said patent being numbered`5,122,) which improvemeut is fully setforth in thefollowingspecication and accompanying drawings, in which- Figure .l is a longitudinal section ot' a cokeoven with partot an adjoining oven, showing my improvement. Fig. 2 is afrout View, and Fig. 3 is a horizontal section, ot the same.

The object of my invention is to furnish a device by which air is admitted to the interior of the oven above the burning coal, and directed to the liue leading to the chimney, so that the combustion of gas from the coal can be exactly regulated as desired, and the state of the interior of the oven can be watched at any time by an attendant, or its temperature tested'by a pyrometer.

In the drawings, a is the body ofthe oven. (Shown dome or bee-hive shaped.) b is an opening or doorway, through which the coal is introduced and the coke withdrawn, this opening being built up during the process of burning. t

c is a small opening at the crown of the oven, having a loose cover, d. c is another opening, opposite the doorway b, and communicating through the iiuef with a chimney.

g is a pipe, of cast-iron or othersuitable material, surrounding the crown ofthe oven, close to the lire-brick lining ot'` the latter. rIhis pipe is covered with non-conducting material, and has one of its ends brought to the front ofthe oven, and provided with a regulatingvalve at h, while its other end is brought round to the front of the oven, above the doorway b, Where it is turned upward and inward for a short distance, its open end t' being directed exactly to the center of the opening e.

In a line with and entering the open end of the pipe is a small pipe, l, through which the state of the interior of the oven can be observed, or a pyrometer introduced for the purpose of ascertainingv its temperature. The

outer end of the pipe t' can' be closed with a plug or cap.

The oven being filled with coal through the opening b, the coal is lighted, and the opening built up with masonry or fire-brick. When the oven is heated, air is admitted through the valve h, and, passing through the pipe g, becomes heated, and is iinally discharged in unbroken'volume through asingle oriflce into the oven, directly to the center of the opening c, acting upon and expediting the carrying ott' of the gases from the coa-l, thereby causing the conversion of the latter into coke to take place exactly as desired, and with greatly-increased production of coke, as compared with ordinary coke-ovens.

The condition and temperature of the interior of the oven can be ascertained by observation through the small pipe fi.

The pipe g maybe made to pass two or more times round the oven, or it may be made straight, without passing round the latter.

The operation of my device is not confined to coke-ovens circular in plan, but may be applied to ovens rectangular or ot' other shapein plan, and it may be readily applied to existing ovens.

I am aware that it is old to employ an airpipe located in the Wall of the coke-oven, through which a blast is blown for carrying ofic the gases from the coal, and that a sightpipe connected with a blast-pipe is also old.

Having thus described myinven tion, what I claim, and desire to secure by Letters Patent, is

The combination, with the oven a, having the flue-opening c, of the pipe g, having an air-regulating valve at one end, and resting upon the furnace or oven with its other end, provided with a pipe, t', extending into the oven in line with the line-opening e, and provided at its outer end with the pipe l, as and for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ARTHUR MARSHALL CHAMBERS.

Witnesses JOHN BAKER, HARRY HUrcHINsoN. 

